Exit Code 255

Asked by Dave

Hi Kendek,

I have installed many times, never had this issue.
If I click on "Systemback" in Menu System, nothing happens, NO GUI.
When I try it from a terminal, I get:

dave@jetway0:~$ /usr/lib/systemback/sbsustart systemback gtk+
[sudo] password for dave:

 An error occurred while executing the following command:

 systemback

 Exit code: 255

dave@jetway0:~$

Question information

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Systemback Edit question
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Kendek
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Revision history for this message
Kendek (nemh) said :
#1

What is the system? Is the /usr/bin/systemback file exist and runnable with
gksu systemback
command?
I think the Qt send the QProcess::FailedToStart enum. This means that the systemback is missing from the PATH environment variable or permission problem.

Revision history for this message
Dave (xwebsubs) said :
#2

Hi Kendek,

System is Linux Lite 2.6, based on Ubuntu 14.04(LTS) kerenel 3.13
(( I have this on other PC's, no issues. This is a fresh new install on new PC ))

Yes,
/usr/bin/systemback file exists systemback 1.3MB executable owned by root

If I,
select the Menu > Systemback then NO GUI

If I,
gksu systemback , it asks for password, nothing, NO GUI

If I,
/usr/lib/systemback/sbsustart systemback gtk+

I get the message:
An error occurred while executing the following command:
systemback authorization dave
Exit code: 255

Many Thanks for your help... Dave

Revision history for this message
Kendek (nemh) said :
#3

Ok, so the file cannot be run. Please check the permissions:
ls -l /usr/bin/systemback
This is the good output:
-rwxr-xr-x 1 root root 884640 szept 12 10:45 /usr/bin/systemback

If you get a different output (in first 10 character), please executing the following command:
sudo chmod 755 /usr/bin/systemback
Check the ls output again and try to start the Systemback.

Revision history for this message
Dave (xwebsubs) said :
#4

Hi Kendek,

I get,
-rwxr-xr-x 1 root root 1330952 Sep 12 09:52 /usr/bin/systemback

Revision history for this message
Kendek (nemh) said :
#5

And what happen if you try to start the command directly?
systemback
If nothing, please try to start the systemback with gdb:
gdb systemback
Input 'r' and Enter.

Revision history for this message
Dave (xwebsubs) said :
#6

dave@jetway0:~$ systemback
Segmentation fault
dave@jetway0:~$

gdb systemback
(gdb) r
Starting program: /usr/bin/systemback
Traceback (most recent call last):
  File "/usr/share/gdb/auto-load/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19-gdb.py", line 63, in <module>
    from libstdcxx.v6.printers import register_libstdcxx_printers
ImportError: No module named 'libstdcxx'
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffeb227700 (LWP 4474)]

Program received signal SIGSEGV, Segmentation fault.
0x00007fffedc277e2 in ?? ()
   from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
(gdb)

Revision history for this message
Dave (xwebsubs) said :
#7

Hi Kendek,

More info,
Checked on Linux Lite forum, another user reports "No issues" with systemback on their LL 2.6(64bit)
So it appears it maybe something unique to my set-up possibly, or something I have done.??
But I have only done what I have done on my other set-ups.

Revision history for this message
Kendek (nemh) said :
#8

This is a Qt problem, segfault in libqxcb.so library. I think that all Qt5 GUI application are not startable. Please try to start a different application, like partitionmanager (as package).

Revision history for this message
Dave (xwebsubs) said :
#9

Hi Kendek,

I was able to launch gnome "gparted" 0.18.0 with the GUI O.K

Revision history for this message
Best Kendek (nemh) said :
#10

Ok, but the GParted is not a Qt5 application. The segfault is happen with libqxcb.so shared library (unknown reason because the debug symbols are missing), this will load when you start a Qt5 GUI application. Just see the other bug reports:
https://www.google.hu/?gws_rd=ssl#q=segfault+libqxcb.so
This problem is not solvable in the Systemback.

Revision history for this message
Dave (xwebsubs) said :
#11

O.K, I need to investigate,
I must have done something, it works on my other PC's, and at least one other Limux Lite 2.6 user.

Revision history for this message
Dave (xwebsubs) said :
#12

Thanks Kendek, that solved my question.

Revision history for this message
Soumen Biswas (soumen-tuli) said :
#13

Hi kendek,

I am in a trouble during systemback application run. My syetm having Ubuntu 14.04 64 Bit.
Below error showing during running with gdb.
Please help in this regard.
I have prepared 4-5 iso from the same machine 2 days back. I cannot understand what happen today.
I need your valueable suggessions.

=============
(gdb) r
Starting program: /usr/bin/systemback
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffeacc3700 (LWP 3846)]

Program received signal SIGSEGV, Segmentation fault.
0x00007fffed4847e2 in ?? ()
   from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
(gdb)

=============

Regards

Soumen

Revision history for this message
Kendek (nemh) said :
#14

I do not know. Was there any Qt (or other) updates?

Revision history for this message
Soumen Biswas (soumen-tuli) said :
#15

Dear Kendek,

No , I have not done any QT related work.

Please help to provide any other method to run systemback gui.

Regards

Soumen

Soumen Biswas
+91-94343 16667
+91-98316 35444

On Mon, Jun 26, 2017 at 6:58 PM, Kendek <
<email address hidden>> wrote:

> Question #271598 on Systemback changed:
> https://answers.launchpad.net/systemback/+question/271598
>
> Kendek posted a new comment:
> I do not know. Was there any Qt (or other) updates?
>
> --
> You received this question notification because you are subscribed to
> the question.
>

Revision history for this message
Soumen Biswas (soumen-tuli) said :
#16

Hi Kendek,

I am facing a different type issue which i experienced first time.
The ISO which is working for me with many installations without any issues.
But today we cannot install in a regular way.

After booting from the same ISO, I can see a different desktop.
Please find attached.

[image: Inline image 1]

I cannot proceed further.

Please help me out.

Regards

Soumen Biswas
+91-94343 16667
+91-98316 35444

On Mon, Jun 26, 2017 at 7:14 PM, Soumen Biswas <
<email address hidden>> wrote:

> Question #271598 on Systemback changed:
> https://answers.launchpad.net/systemback/+question/271598
>
> Soumen Biswas posted a new comment:
> Dear Kendek,
>
> No , I have not done any QT related work.
>
> Please help to provide any other method to run systemback gui.
>
> Regards
>
> Soumen
>
>
> Soumen Biswas
> +91-94343 16667
> +91-98316 35444
>
> On Mon, Jun 26, 2017 at 6:58 PM, Kendek <
> <email address hidden>> wrote:
>
> > Question #271598 on Systemback changed:
> > https://answers.launchpad.net/systemback/+question/271598
> >
> > Kendek posted a new comment:
> > I do not know. Was there any Qt (or other) updates?
> >
> > --
> > You received this question notification because you are subscribed to
> > the question.
> >
>
> --
> You received this question notification because you are subscribed to
> the question.
>